A Pressure Cooker is essential to efficiently heat and quickly cook food. Pressure cookers come with a sealed lid that retains steam, heat, and pressure, resulting in your meal cooked to perfection. Keep in mind, you won't be able to take a peek at the contents within the pressure cooker while cooking because it causes the cooker to lose the pressure that's building up. Also, all pressure cookers come with a safety release valve that will expel steam when the internal pressure becomes too high. Once you master your new pressure cooker it will quickly become your main go to kitchen tool.